Water-rigging for stoping-drills



W. H. JOYCE.

WATER RIGGING FOR STOPING DRILLS.

APPUCATION FILED NOV. 5, l9l9- Patented Nov. 22, 1921.

2 SHEETS-SHEET I.

INVENTOR WZZZLamHc/agaa #ITNESSES 95 ATTORNEYS W. H. JOYCE.

WATER meme FOR STOPING DRH LS.

APPLICATION F NOV 5 1919 1,398, 1 O0. Patented Nov. 22, 1921.

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A TTORNEYS UNITED STATES PATENT OFFICE.

WATER-RIGGING r012. STOPING-DRILLS.

Specification of Letters Yatent.

Patented Nov. 22, 1921.

Application filed November 5, 1919. Serial No. 335,789.

To all whom it may concern:

Be it known that I, \VILLIAM HENRY JOYCE, a citizen of the UnitedStates, and a resident of Leadville, in the county of Lake and State ofColorado, have invented certain new and useful Improvements in Water-Rigging for stoping-Drills, of which the following is a specification.

My present invention relates generally to drills and more particularlyto mining drills for instance, coal drills where the rapid accumulationof dust has a decided tendency to clog the action of the drill, myobject being the provision of. a simple, convenient and inexpensivewater rigging, by means of which a column or stream of water may beinjected directly into a drill hole against the drill bit in action, anda further object is the provision of a water rigging which may bereadily and quickly adapted to stoping drills.

For the above purpose, my invention proposes a tubular nozzle supportwhose hollow body is formed to telescope the chuck or front head of astoping drill, one end of this tubular supporting member being entirelyopen and the other end having a reduced opening for the reception of adrill shank. At its last mentioned end the supporting member carries arigid though interchangeable nozzle as well as a water supply connectionarranged in communication with said nozzle and while the supportingmember as a whole is secured to the chuck or front head of the drill,this connection is effected by a set screw, and the support may thus beadjusted around the drill shank, as may be desired.

The details of the above features as well as of the fluid supply theretowill be apparent from the accompanying drawings illustrating my presentinvention and forming a part of this specification. In these drawings,

Figure 1 is an elevation showing the practical application of myinvention,

Fig. 2 is a top plan view of the tubular support and its parts removed,

Fig. 3 is a vertical longitudinal section therethrough.

Referring now to these figures, I have indicated generally at 10 in Fig.1 a stoping drill of the type to which my invention is applied, itschuck or front head being indicated at 11 and being as well known ofcylindrical form adapting the same to the ready reception of the hollowbody 12 of my tubular supporting member. A set screw 13 is used tosecure the tubular support in place by virtue of its clamping engagementwith the chuck or front head, one end of the tubular support 12 beingentirely open to permit it to slip down upon the chuck or front head.

The other end of the tubular support 12 has a reduced opening 14 throughwhich the shank 15 of a drill projects, and at one side of-its opening14 it has a recess 16 communicating with a lateral internally threadedinlet 17 and a vertical slightly inclined internally threaded outlet 18into the latter of which a normally rigid though interchangeable nozzle19 is mounted. This noz zle is in the form of an axially bored plughaving a squared outer end to facilitate screwing of the same into andout of the outlet 18.

.The inlet 17 receives the externally threaded and reduced end of aconnecting nipple 20 to which one end of the fluid supply pipe 21,preferably a flexible pipe is secured. The supply pipe 21 leads from afluid container 22 and preferably has a valve at 23 intermediate itsends. The fluid receptacle or tank 22 also has an air-pipe 24 whichleads thereto for the purpose of forcing the liquid out of thereceptacle or tank and through the pipe 21 to the nozzle 19, when thevalve 23 is open.

In this Way, it is obvious that I provide a simple, convenient apparatuswhich may be readily placed in and removed from effective position,which may be readily adjusted, and which will operate to deliver astream of water into the opening in which the drill bit is working andagainst the drill bit, both for the purpose of cooling the bit andWashing the dust out of the opening around the bit.

It is furthermore obvious that while normally positioned and readilyheld in connection with its support the nozzle may be readily removedfor purposes of substitution in order that plugs having large and smallbores may be utilized to regulate the size of the stream of waterdelivered therefrom.

I claim:-

The combination with a drill including a cylinder, of a cylindricalsupport telescoping and adjustably secured to the front head of end anda recess adjacent to said end provided with an internallythreaded inletand an internally threaded outlet the latter inclined with respect tothe longitudinal axis of the cylinder, an axially bored nozzle plugscrewing into the outlet, a delivery pipe hav- 10 ing a nipple screwinginto the inlet and fluid supply means with which the said pipe is incommunication.

WILLIAM HENRY JOYCE.

